<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  </head>
  <body>
    <style>
      html {
        font-size: 20px;
      }
      main {
        /* font-size: 100px; */
      }
      article {
        /* font-size: 80px; */
        padding: 100px;
      }
      div {
        font-size: 2rem;
        padding: 2rem;
        border: solid 1px #ddd;
      }
    </style>
    <main>
      <article>
        <div>yahoo.com</div>
      </article>
    </main>
  </body>
</html>
